How to assign variables in to filter in qliksense

Hello Experts,

How to assign variables in to filter in Qliksense?

Example:

I have a revenue data,and customer data, i want to show top 10 customers. iam able to get this value and showing in a chart but user wants to select on the fly dynamically. in filter like 10,15,20 .......like this

how can i achive this?

i did like this and get the result, but user wants to select the numbers his own in sheet .